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Abstract
Reactions of thiophene, t-butylbenzene, phenyltrimethylsilane and iodobenzene with (NH3)3Cr(CO)3 in refluxing dioxane have produced the corresponding arenetricarbonylchromium complexes in yields as good as or better than similar reactions using Cr(CO)6. This synthetic technique also has a major advantage over Cr(CO)6 in such reactions in that (NH3)3Cr(CO)3 does not sublime under these conditions. Iodobenzenetricarbonylchromium reacts with magnesium in ethyl ether to form the corresponding Grignard reagent in low yield. The formation and properties of a series of complexes derived from (NH3)3Cr(CO)3 and triptycene, dibenzobarrelene and biphenylene have also been studied.